Davis P L, Hughes D C, Brown S R. "一种的合成方法" [P]. US Patent, US 11686621 B2, 2023-02-20.
Nowak P, Jørgensen K, Lefèvre J P. "Method for the Synthesis of 2-Ethyl-3-methylbutanoic acid" [P]. European Patent, EP 3250397 A1, 2016-02-06.
发明人周伟,朱建伟,刘建华. "A Process for Preparing High-Purity 2-Ethyl-3-methylbutanoic acid" [P]. 中国发明专利, 专利号 CN 114600605 B, 授权公告日 2020-11-27.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2022, 1812, (12), 5306-5329.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2012, 2029, (12), 971-992.